{"id":"CVE-2026-43305","summary":"drm/amd/display: Fix mismatched unlock for DMUB HW lock in HWSS fast path","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix mismatched unlock for DMUB HW lock in HWSS fast path\n\n[Why]\nThe evaluation for whether we need to use the DMUB HW lock isn't the\nsame as whether we need to unlock which results in a hang when the\nfast path is used for ASIC without FAMS support.\n\n[How]\nStore a flag that indicates whether we should use the lock and use\nthat same flag to specify whether unlocking is needed.","modified":"2026-07-15T01:49:07.236629200Z","published":"2026-05-08T13:11:24.952Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43305.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/4e387ad67efb100b645630ffbce7716786f52283"},{"type":"WEB","url":"https://git.kernel.org/stable/c/af3303970da5ce5bfe6dffdd07f38f42aad603e0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43305.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43305"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"7d041982fe11fff29b32a09228c4d52f159b56ad"},{"fixed":"4e387ad67efb100b645630ffbce7716786f52283"},{"fixed":"af3303970da5ce5bfe6dffdd07f38f42aad603e0"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43305.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43305.json"}}],"schema_version":"1.7.5"}